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Updated: Jul 27, 2026
10:23
Using Luciferase to Image Bacterial Infections in Mice
Published on: February 18, 2011
Summary
Lucifer dyes are fluorescent molecules visible in living cells and can reveal cell connections through dye-coupling. These dyes also aid in ultrastructural tracing and neuronal studies.
Area of Science:
- Cell biology
- Neuroscience
- Microscopy
Background:
- Lucifer dyes are non-toxic, intensity fluorescent 4-aminonaphthalimides.
- Their low molecular weight facilitates cell-to-cell passage (dye-coupling).
- Dye-coupling is a proposed method for understanding functional relationships between cells.
Purpose of the Study:
- To explore the applications of Lucifer dyes in cell biology and neuroscience.
- To demonstrate the utility of Lucifer dyes for various imaging and tracing techniques.
Main Methods:
- Utilizing Lucifer dyes for live-cell imaging at non-toxic concentrations.
- Observing the phenomenon of dye-coupling between cells.
- Employing Lucifer dyes for ultrastructural tracing via correlated light and electron microscopy.
- Investigating Lucifer dye efficacy in backfilling neurons through cut nerves.
- Assessing Lucifer dyes for visualizing retrograde axonal transport.
- Exploring covalent labeling of macromolecules with Lucifer dyes.
Main Results:
- Lucifer dyes are readily visible in living cells without toxicity.
- Widespread dye-coupling was observed, suggesting functional cell-cell communication.
- Successful ultrastructural tracing was achieved by correlating light and electron micrographs.
- Potential applications in neuronal tracing and labeling were demonstrated.
Conclusions:
- Lucifer dyes are versatile tools for live-cell imaging and understanding intercellular communication.
- Their applications extend to advanced techniques like ultrastructural tracing and neuronal studies.
- Lucifer dyes offer significant potential for various biological research areas.
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